Just from skimming the pics it looks like you'll need to remove the sanke couplers currently installed; and install the gas line on the grey pin lock connectors. The black top pin lock connectors are for the liquid side of the keg. I'm not sure if you have (2) gas & (2) liquid posts for the kegs, but if you do the post with (3) pins is for the liquid side and the post with (2) pins is for the gas. You'll also need 10' of beer line for each keg.
Were you given a tower? If not, you'll need a 2" or 3" tower with (2) holes for taps. You'll also need (2) gooseneck shanks and the grommets to attach them to the tower. Oh yeah, you'll also need (2) taps. Consider getting a faucet wrench, too and new o-rings for the kegs. That's all I can think of right now and just from what I could see in the pics. Good luck!
